Mitt Romney lost Latinos by unprecedented margins — even worse than the initial exit polls showed — according to a study by Latino Decisions.

An election eve poll of 5,600 voters across all 50 states by the group, which has researched the Latino vote throughout the campaign, concluded Obama won by an eye-popping 75-23 margin. Their research concluded that CNN’s exit poll estimate of 71 percent of Latinos breaking to Obama likely undercounted their support, although they agreed with the assessment that turnout equaled 10 percent of the electorate.

“For the first time in US history, the Latino vote can plausibly claim to be nationally decisive,” Stanford University university professor Gary Segura, who conducted the study, told reporters.

According to Segura, the Latino vote provided Obama with 5.4 percent of his margin over Romney, well more than his overall lead in the popular vote. Had Romney managed even 35 percent of the Latino vote, he said, the results may have flipped nationally.